Angular Rotation and Acceleration

[ocean1234]

[Mentor Note -- OP deleted his posts after receiving help. His posts are restored below]

@ocean1234 -- Check your messages. Deleting your post is not allowed here, and is considered cheating.

Problem was given: $\theta(t) = at - bt^2 + ct^4$

a) calculate $\omega(t)$

b) calculate $\alpha(t)$

c,d) plug in some numbers and time to get results for $\omega$ and $\alpha$

 

[berkeman]

Welcome to the PF.

I did a and b part but ı didnt other parts plase help

Please show us what you got for a) and b). Thanks.

 

[ocean1234]

Welcome to the PF.

Please show us what you got for a) and b). Thanks.

Hello thanks :)

Answer
a) ω = a-2bt + 4ct ^ 3 rad / s
b) α = -2b + 12ct ^ 2 rad / s ^ 2

 

[ocean1234]

Help plase
I have only 1 hour left.

 

[berkeman]

Hello thanks :)

Answer
a) ω = a-2bt + 4ct ^ 3 rad / s
b) α = -2b + 12ct ^ 2 rad / s ^ 2

Those look correct. So now you should be able to do the other parts with just substitution, right?

 

[ocean1234]

Those look correct. So now you should be able to do the other parts with just substitution, right?

I tried but I couldn't find any of them right

 

[berkeman]

Please show your work so we can check it. Thanks

 

[berkeman]

Because the OP tried to delete this thread, it is now locked.